OS Fundamentals - Fundamentals of Operating Systems

Head to https://os.husseinnasser.com to grab my new OS course Operating systems (their kernel specifically) orchestrate many processes, allow access to memory, disk, network and execute processes by scheduling them to the CPU. Sounds simple when we put it this way but this task is vast. Writing efficient programs depends on how much understanding the engineer has in OS kernel. When we access a 32 bit integer in memory or write 6 bytes to disk, the kernel and hardware work together through several steps and layers to handle those tasks, simple as may seem. Each step and layer may add unpredictable costs. As a result we as engineers are bound to write inefficient code as we grind across the grain of the kernel. I built this course to demystify what I believe are the fundamentals operating systems to software engineers. By knowing how the kernel works, you will start writing software differently and naturally as you will start questioning what happens in each line you author. Like all my courses, I recommend the student having some programming experience to take this course, it just makes the course relatable. The course is focused on Linux but I do explain how Windows and Mac are different in certain situations. I hope you enjoy it. I'm happy I was able to finish it after 2 years of work. Discovering Backend Bottlenecks: Unlocking Peak Performance https://performance.husseinnasser.com Fundamentals of Backend Engineering Design patterns udemy course (link redirects to udemy with coupon) https://backend.husseinnasser.com Fundamentals of Networking for Effective Backends udemy course (link redirects to udemy with coupon) https://network.husseinnasser.com Fundamentals of Database Engineering udemy course (link redirects to udemy with coupon) https://database.husseinnasser.com Follow me on Medium https://medium.com/@hnasr/membership Introduction to NGINX (link redirects to udemy with coupon) https://nginx.husseinnasser.com Python on the Backend (link redirects to udemy with coupon) https://python.husseinnasser.com Become a Member on YouTube https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join Buy me a coffee if you liked this https://www.buymeacoffee.com/hnasr Arabic Software Engineering Channel https://www.youtube.com/channel/UChWZsjdoRvZ0T9QWZOD6UpA 🔥 Members Only Content https://www.youtube.com/playlist?list=UUMO_ML5xP23TOWKUcc-oAE_Eg 🏭 Backend Engineering Videos in Order https://backend.husseinnasser.com 💾 Database Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2 🎙️Listen to the Backend Engineering Podcast https://husseinnasser.com/podcast Gears and tools used on the Channel (affiliates) 🖼️ Slides and Thumbnail Design Canva https://partner.canva.com/c/2766475/647168/10068 Stay Awesome, Hussein